# 作者：宋安康
# 开发时间：2023/9/8 19:33
print(520)
print(90.2)
print('hello world')
print("hello world")
print(3+1)
print(chr(91))
print(ord("北"))
print(chr(21271))
fp = open("note.txt", "w")
print("北京欢迎你",  file = fp)
fp.close()
